Regex Endless Loop stalling build when using attributify mode and < char

[MiniDigger]

This is a really weird issue and took me waaaaaaaaaayyyy to long to figure out.
I converted a project from windi to unocss today and everything worked great, locally, but my build on github actions stalled. upon verification locally, I could reproduce that.
now followed a few hours of digging and I have pinned the issue down: using < in classes in certain combinations causes a regex catastrophic backtracking.
I managed to debug my way thru stuff and eventually managed to create this minimal repro: https://stackblitz.com/edit/github-y3a65o?file=app.vue
notice how stuff seems to work in pnpm run dev, but pnpm run build just freezes. Removing the < in line 9 fixes the freeze. removing the space + d behind color-red also fixes the freeze.
The issue is this regex: https://github.com/unocss/unocss/blob/main/packages/preset-attributify/src/extractor.ts#L11
If you take that regex and the code that unocss scans for that component into regex101, it will complain about catastrophic backtracking: https://regex101.com/r/Ib1eKA/1
(I obtained the code by console logging the code var here https://github.com/unocss/unocss/blob/main/packages/preset-attributify/src/extractor.ts#L24, before the regex match)
Remove the < and it works, remove the space after the color-red and it works too (as in no match, but no endless loop either).

thats pretty much all find I found out tonight, hopefully that is somewhat helpful to hunt this one down, I tries to understand the regex, but its 2am now and I didn't come far, lol

ps, I know < should be lt in unocss, after talking about the solution to this issue with friends, but I still think this is a valid issue, < could be located elsewhere in the code and theoretically trigger this I think.

[zyyv]

Hi, check this docs. https://github.com/unocss/unocss/blob/main/packages/preset-wind/README.md#differences-from-windi-css

[MiniDigger]

yes, I was made aware, I said in the last sentence, but its still a valid issue

[chu121su12]

Smaller subset of string that's causing this:

https://regex101.com/r/48y4HT/1